The TLC is a nationally representative longitudinal sample of youth and young adults in the United States, aged 15 to 21 years at baseline. Data were collected entirely online. Approximately 14,000 participants completed the baseline survey between April and August 2014, with follow-up assessments completed every six months to one year.
Study design
Cohort
Number of participants at first data collection
10,257 (participants)
Age at first data collection
15 - 21 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
United States population of 15 to 21 year olds in 2014.
Sample features
Country
Year of first data collection
2014
Primary Institutions
Truth Initiative
Links
No website available
Profile paper DOI
Funders
Truth Initiative
Ongoing?
No
Data types collected
Engagement
Keywords